Double-lock crown cap



Aug. 13, 1929- A. F. M DONNELL D OUBLE LOCK CROWN QAP Filed July 24,1928 2 Sheets-Sheet l 1929- A. F. McDONNELL DOUBLE LOCK CROWN CAP 2Sheets-Sheet Filed July 24, 1928 gwumtoz H.,F.' McDonnell WLZM PatentedAug. l3, l92l9.

FFlCE.

DOUBLE-LOOK CHOlNN GAP.

Application filed July 24%, 1928. Serial No. 294,969.

This invention relates to bottles and jars having necks peculiarlyshaped and constructed to receive correspondingly formed caps adapted tobe applied to said necks by the cappers of capping machines commonlyused to apply caps of the well-known crown type to bottles in commonuse.

As is well known in this art, the ordinary crown cap is applied tobottles having necks provided with a single wide lip or head. It is alsowell known that the breakage caused by the application of the ordinarycrown cap to this type of bottle neck is frequent. Considerable breakageof this type of bottle neck is also caused by the removal of the crowncap therefrom.

The main object of the present invention is to provide the necks ofbottles and jars with a plurality of beads or lips shaped so as todecrease the possibility of breaking the bottle neck by heavy pressureof the capping head in sealing, or by the use of the common opener oncrown caps applied to such bottle necks.

Another object of the invention is to provide bottle necks of the typereferred to above with means whereby a crown cap may be removedtherefrom by a twisting action in either direction on the bottle neck.

so Other objects of the invention will appear as the detaileddescription thereof proceeds.

In the drawings:

Figure 1 is an elevation of a special form of crown cap forming a partof this invention, the parts of the cap being broken away and shown insection;

Figure 2 is a central vertical section through a bottle neck embodyingthis invention and having a crown cap appliedthereto before beingcrimped thereon;

Figure 3 shows a bottle neck in elevation with a cap applied thereto incrimped position and shown in section;

Figure 4: is a sectional elevationtaken on the line H of Figure 3;

Figure 5 is a horizontal section taken on the line 55 of Figure 3;

Figure 6 is an elevation of a modified form of bottle neck showing a capapplied thereto and before being capped thereon, the cap being shown incentral vertical section;

Figure '7 is a section taken on the line 77 of Figure 6;

ure 8 illustrates an elevation of a further modified form of bottle neckhaving a crown cap applied thereto and adapted to be rcn'io'vmltherefrom by twisting;

Figure 9 is a sectional elevation of still another form of bottle neckwith a crown cap applied thereto in the usual manner by the or trycapping machine;

Figure 1.0 is a vertical section taken on the line 10--l0 of Figure 9;

Figure 11 is a horizontal section taken on 6 the line 11-11 of Figure10;

Figure .12 is a fragmentary elevation of a form of wide-mouth jaradapted to have a crown cap applied thereto by a oapper of crdinaryconstruction;

Figure 13 is a fragmentary elevation of a further modified form ofwide-mouth jar adapted to have a crown cap applied directly thereto as aclosure;

Figure 1a is a central vertical section of the jar shown in Figure 12with a crown cap criniped thereon; and

Figure 15 is a central vertical section through a jar of the type shownin Figure .13 and having a crown cap crimped thereon. so

Referring to Figure 1 of the drawings, the crown cap 1 is shown asprovided with a plurality of horizontal crimps 2 and 3. The ordinarycrown cap, as commonly used,

provided with only one horizontal crimp 35 which is forced under thebead of the bottle conunonly used by vertical movement of a cappersliding over the crown cap and engaging the skirt thereof to force thecrimp under said. head.

In the present invention, I prefer to use a plurality of beads on thebottle neck with a corresponding number of crimps in the crown cap.However, since this invention is intended to be used with the ordinarycrown capping machine it is essential that the outer diameter of themodified cap have the same relation to the top thereof as exists betweenthe corresponding parts of the crown cap in common use. For example, thedifierence between the top and bottom dlameter of standard crown caps is{1; of an inch, so that the cap at each point of movement has a totalmovement of not more than of an inch. In the double lock or double crimpcaps involved in this invention it is also essential that the differencebetween the top diameter and the lowest crimping point diameter be notmore than of an inch.

The dimensions of the cap shown in Figure 1 are grossly exaggerated, butthis is merely to illustrate the invention clearly. It must beunderstood that in all forms of this invention the caps must be sodesigned that they can be applied to the various modified-form of bottleneck by the standard cap- -per or capping machine.

In the form of the invention shown in Figure 2, the bottle neck 4 isprovided with .two beads 5 and 6; and these two beads are intended tooccupy the same space as is now occupied by the beads of bottle neckscommonly used. The lower bead 6 is of slightly less diameter than theupper bead 5 and insures a firm wedge action to hold the cap 1 securelyon the bottle neck.

The bottle neck ,4 has diametrically opposite points of the grooves 7and 8 filled in to provide vertical walls 9 and 10, adapted to separatethe crimped in parts of the cap 1 from the bottle neck 4 by rotation ofthe cap l on the bottle neck. It will be obvious that the parts of cap 1in contact with the walls 9 and 10 will have no holding eilect upon thecap 1; and that when the-crimped cap is rotated in either direct-ion onthe neck 4, these walls 9 and 10 will spread the crimped parts andthereby enable the cap to be removed by pulling it vertically ofi thebottle neck.

In the modification shown in Figures 6 and 7, the beads 11 and 12 are ofthe same diameter and the'cap l is similar to the cap .used on the formshown in Figure 2. This form of the invention is provided with avertical wall 13 to serve the same purpose as the walls 9 and 10 in theform shown in Figaires 3, 4, and 5.

Inthe modification shown in Figure 8, a single bead 14 is provided onthe bottle neck :as a substitute for the wide lip or bead in common use.This tapered form presents :no sharply outjutting beads which can bechipped or broken by the application of an opener thereto, or by theoperation of a capper thereon in applying a crown cap there- ;to. Thebead 14 is provided with a vertical part 15 in order to facilitateremoval of the cap therefrom by twisting on the bottle neck.

The modification shown in Figures 9 and '10 is a combination of thetaper form shown in Figure 8 with the bead form of bottleneck in commonuse. In this modification the bead 16 is rather narrow and merges into ataper 17 adapted to form a seat of a greater part of the skirt of thecap 1. Vertical portions 18 and 19 are formed at diametrically oppositepoints of the bottle neck to facilitate the movement of the captherefrom by rotary twisting movement in either direction on the bottleneck.

The invention may be applied to wide mouthed ars, either to form alocking means for ar sealing means already applied to the jar; or, theinvention may be directly used as a closure for such type of jar.

The jar 20 shown in Figures 12 and 14 has a bead 21 near its upper endand is provided with screw threads 22 adapted to receive thecorrespondingly screw threaded skirt 23 of a closure 24. This is acommon type of jar in which the closure 24 may be connected to orremoved from the screw threads 22 manually as desired. For shipping andsealing purposes, it is sometimes desirable to look this closure membersecurely to the jar; and for this purpose it may be desirable to apply acrown. cap 25 of the double crimped type to lock the closure securelyin. place on the jar.

The jar 20 may be provided with a vertical part 26 below its bead 21 tofacilitate removal of the cap 25 by rotation on the neck of the jar.

In Figures 13 and 14 there is shown a jar 26 having beads 27 and 28 atthe upper end thereof. These beads are adapted to receive thecorrespondingly crimped skirt 29 of the cap 30. A vertical part 31formed on the beaded part of the jar 26 serves, as before, to facilitateremoval of the cap 30 by rotation thereof on the jar.

In all the modifications described herein it will be obvious that thedouble row of cap contacts require less unsealing pressure for removalof the cap as the resistance to unsealing is divided, and a less widthof bottle lip is required to effect a perfect seal with the double rowof crimps of the caps. This also forms a better distribution of glass toreceive the shock of capping machine pressure.

What I claim is:

1. The combination with a bottle having a neck provided with a pluralityof beads, of a cap closing said bottle neck and having a skirt crimpedunder each of said beads and means-on said beads to separate said skirtfrom said beads when the cap is rotated in either direction on saidbottle neck.

2. The combination with a bottle having a neck provided with a pluralityof beads forming recesses with each other and with said neck, of a capclosing said bottle neck and crimped into said recesses and means formedon said bottle neck at diametrically opposite points in said recesses toprovide parts of the same diameter as the largest parts thereof crimpedinto said recesses and diameter of said beads to effect removal of meansin said recesses to effect separation of 10 said cap from said beads byrotation of the said closure from said beads by rotation of cap ineither direction on the bottle neck. the closure on the mouth of thebottle.

3. The combination with a container hav- In testimony whereof I affix mysignaing a neck provided With a plurality of reture. cesses parallel tothe mouth of said container, of a closure on said container havingANTHONY F. MODONNELL.

